[FrameworkBundle] made sure that the debug event dispatcher is used everywhere
bug #9168 [FrameworkBundle] made sure that the debug event dispatcher is used everywhere (fabpot)

This PR was merged into the master branch.

Discussion
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[FrameworkBundle] made sure that the debug event dispatcher is used everywhere

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #6686, #7673
| License       | MIT
| Doc PR        | n/a

The removal of the Profiler dependency on the TraceableEventDispatcher (#9170) allows to remerge the patch from #9068 that fixes #6686.

This PR also cleans up how profiles are stored. A Profile is now always stored only once.

The fix will only be available on 2.4+ as the changes are too deep to be backported to 2.2 and 2.3.

Commits
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1e1835e [FrameworkBundle] made sure that the debug event dispatcher is used everywhere